Sink and drainboard construction



April 30, 1940. H. D. DRAIN 2,198,696

SINK AND DRAINBOARD CONSTRUCTION Original Filed March 10, 1938 INVENTOR.

ATTORNEYS.

Pa tented Apr- 30. r i v I UNITED STATES PATENT OFFICE SINK ANDDRAINBOARD CONSTRUCTION Herbert D. Drain, Chicago, 111., assignor, bydirect and mesne assignments, to Chicago Drain-'- ibfiianrdisco Inc.,Chicago, 111., a corporation of.

Application March 10, 1938, Serial No. 194,996 Renewed December 13, 19394 Claims. (01. 4-189) The present invention relates to an improvedcomposed of a relatively heavy wooden timber. typeeof sink anddrainboardoonstruction which From the rear portion of the bed plate lthere provides for a firm and secure support of a sink rises averticalbackboard ll having a face porwithin an opening in a drainboardpreferably tion l2 composed of linoleum or some similar covered withlinoleum or the like, and has parcovering material. A metallic edgebinder l3 5 ticular reference to a construction of this type extendsabout the outer portion of the backboard in which a single, easilyassembled and water- H and over the edges of the linoleum covering.tight securingor supporting means is provided Extending from the rearbed plate is an between the sink and the drainboard. outer supportingtimber I4 and an inner sup- 10 A principal object of the invention isthe proporting timber l5. Mounted on the top of the vision of a sink toa drainboard mounting having timbers l4, l5 and I9 is a plywooddrainboard an extruded aluminum. supporting and sealing platform I6. Theplywood platform forms the member between and overlapping the sink anddrainboard and over the plywood is mounted a the drainboard. coveringlayer ll of linoleum. k An additional object of the invention is the Thelinoleum is cemented to the top section provision of aconstruction ofthe type described of the plywood to produce a permanent seal in which alinoleum covered or similar drainboard therebetween. The cover may be ofany wateris provided with a plywood base or supporting proof resilientmaterial such as cork, rubber, board and a metallic sealing memberpositioned Masonite or the like. Stainless steel pressed into 2 in anopening in the drainboard for support of the desired shape likewiseforms a satisfactory a sink. I drainboard surface material. A furtherobject of the invention is to provide A raised strip I8 is mountedadjacent the outer a drainboard and sink mounting in which ameedge ofthe drainboard to prevent water from" tallic T-shaped supporting memberis mounted spilling over the drainboard. Screws l9 extend in overlappedrelation with respect to the sink through this strip and the linoleumand are an- 25 I and drainboard and adjustable take-up members chored inthe plywood, thereby forming a rigid are provided for compressing thesink and drainconnection between the parts. Surrounding the board memberagainst the overlapping portions outer edges of the timber II, theplywood section of the supporting member. IS, the linoleum strip l1 andthe strip I8 is a 0 Still another object of the invention is themetallic molding striplll. The lower leg of the-' provision of a sinkand drainboard mounting in molding strip is secured to the timber it bywhich a linoleum covered drainboard having an means of screws 2|. 9opening therein is provided with a metallic sup- The central portion ofthe drainboard is cut porting ring of general T-shaped cross-sectionaway to provide an opening into which a flanged. extending in overlappedrelation with respectto sink 22 is fitted. This sink is of conventional35 a sink and the drainboard and take-up screws V construction and if ofcast iron it may be propass angularly through the lower portion of thevided with an inner enamel coating 23. Where 1 drainboard construction,then through the me 1 a stainless steel sink is employed its thicknesstallic supporting ring, and in abutting relation 9 is somewhat less thancast iron sinksand the with respect to the sink member, wherebytightenameled coating is not necessary. i 40 ening of said screws causescompression of the The structure by which the sink 22 is mountedoverlapping portions of the supporting member to the drainboard has manyadvantages over. sink against the drainboard-and sink, there beingpromountings known heretofore. The linoleum ll videda lead foil or othertype of sealing medium is rabbeted about the opening into which thebetween the sink and the supporting member or sink is fitted as shownat.24. There is mounted 45 ring to insureawatertighteonnection. v in thesink opening a generally T-shaped ex- These and other objects will beevident upon truded aluminum sink supporting and sealing aconsiderationof the following specification and ring 25, the verticalleg of which fits .closely by reference to the accompanying drawing, inagainst the lower inner timber l5 and the inner which the single figureshows a sink and drainedge of the plywood platform It. The outward 50board mounting constructed in accordance with horizontal extension ofthe T-shaped ring 25 fits the invention and cut away to show two sidesinto the rabbeted portion 24 of the linoleum ll of the mounting insection. and the inward horizontal extension of the T- In theconstruction shown in the drawing there section forms an overhangingledge which exu is provided a rear bed plate [0 which may be tends intothe opening into which the sink is fitted. The lower or vertical sectionof the supporting'ri'ng is securedto the inner timber l5 and to the rearsection ill by means of screws 26.

In assembling the sink construction the support ring 25 is placed in theposition shown inv the drawing with respect to the drainboard, and theflange of sink 22 is placed beneath the inner extension of thesupporting ring. Thereafter the timber I5 is drilled to form a series ofopenings,

one of which is shown at 21, and the vertical leg of the rim member istapped to receive a series of machine screws, one ofwhich is shown at28. It will be noted that the machine screw 21B extends angularlythrough the timber l5 and the sink supporting ring 25. The inner end ofthe machine screws bear against the under side of the flange of sink 22and holds the sink in assembled relation with respect to the supportingring. In drilling the opening for screws 28 the drill may contact theunder edge of the sink flange sufiiciently to provide a seat for thescrews 28, as indicated in the drawing.

Before the sink is assembled with the supportingring a plurality of leadfoil strips are folded about the top and edge of the sink flange andthese layers of foil are inserted between the inner edge of the sinkflangeand the supporting ring when the assembly is complete. Usually thefoil layers extend alongside the vertical leg of the supporting ringsomewhat beyond the sink flange to provide extra material for sealingpurposes. After placement of the machine screws 28 the assembly may beinverted and a suflicient amount of heat is applied to the foilextensions to cause the foil to melt and fill in the space between thevertical portion of the supporting ring and sink to form a seal 29. Thesupporting ring 25 pref-. erably is provided with grooves as shown at30,

. into which the molten. metal may flow to form an interlock. It is notnecessary that the entire body of the foil layers be melted, since themultilayer nature of the foil assembly provides a watertight sealbetween the top of the sink flange and the supporting ring when theassembly is compressed together.

An important feature of the sink mounting described is that thetightening of machine screws 28 causes the entire assembly of elementsto be drawn together. On the drainboard side of the supporting ring 25tightening the screws 28 causes the timber l5 to be pressed upwardly,and this pressure is transmitted through the plywood platform l6 and thelinoleum I! to the overhanging ledge of the supporting member 25. Thiseffectively binds the elements together and prevents any possibility ofwater leaking from the drainboard into or through the joint between thesupporting ring and the drainboard, Also, tightening the screws 28causes the sink member 22 to be pressed upwardly with respect to theinner overhanging ledge of the supporting member. thereby producing arigid suspension of the sink The molten foil flows into irregularitiesbetween the metallic sink flange and the vertical leg of the metallicsupporting ring and there is provided an effective seal that preventswater from leaking into or through the joint between. the sink and thesupporting ring 25.

The dimensions of the drainboard and sink assembly described may varyconsiderably. In one satisfactory embodiment of the invention theplywood platform I6 is of the order of inch thickness and the linoleumlayer I'I constituting the top of the drainboard may be approximatelyone-half of this thickness. The timbers I4 and I5 are in the nature ofreinforcing strips and may be of any suitable dimension.

It is preferred that the supporting ring 25 be of extruded aluminum, itbeing possible by the extrusion of this type of metal to produce turnswithout broken joints. In this manner the entire ring may be produced ofone piece of material which has a single joint.

It will be recognized that many changes may be made in thestructurewhich is described herein for purposes of. explanation without departingfrom the scope of the invention, and such changes are intended to beincluded in the appended claims.

I claim:

1. A sink and drainboard assembly, comprising a drainboard, a sink withan outwardly turned flange, a substantially T-shaped supporting ringprovided with a downward extension positioned between said drainboardand sink and outward extensions over said drainboard and said sinkflange, and means for pressing said sink flange and drainboard upwardlybeneath said ring extensions.

2. In a sink and drainboard assembly, a drainboard structure, a linoleumcover for said structure, said linoleum and said structure having a sinkreceiving opening, a substantially T-shaped supporting ring having anoverhanging portion rabbeted into said linoleum, a sink having a flangepositioned beneath an opposite overhanging portion of said ring, andmeans for maintaining said sink and drainboard construction incompressed relation with respect to the overhanging portions of saidsupport.

3. In a sink and drainboard assembly, a drainboard having a lowerreinforcing member and a sink receiving opening, a supporting ring ofsubstantially T-shaped cross-section fittedinto said opening and havinginner and outer overhanging portions and a downwardly extending portion,a sink positioned beneath the inner overhanging portion of said ring,and a screw member passing angularly upwardly through said reinforcingstrip and the vertical portion of said ring, and bearing on its endagainst the under portion of said sink flange.

4. A sink and drainboard assembly, comprising a drainboard, a sinkprovided with an outwardly turned flange, a substantially T-shapedsupporting member provided with a downward extension positioned betweensaid drainboard and sink and provided with outward extensions over saiddrainboard and sink flange, means for securing the downward extension ofthe supporting memher to the edge of the drainboard with one of the

